Active Thermography Online Presentation

The purpose of the Active Thermography Online presentation is to introduce students to the basics of active thermography, describe the non-destructive material testing capabilities of the method, present its research and technological application possibilities, and draw attention to the real limitations and the necessary measurement (environmental) conditions. The presentation provides a detailed overview of the physical and metrological fundamentals, knowledge of which greatly facilitates the professional preparation and evaluation of thermal images.

Topics of the Online Presentation

• Physical Fundamentals - Theoretical Introduction - thermal radiation - electromagnetic wave - physical laws: ideal radiator model, PLANCK - emission, absorption, reflection, and transmission - heat conduction, heat capacity, heat propagation speed
• Physical Fundamentals of Active Thermography - the effect of measurement setup on the results - the role of object characteristics in the examination - selection of measurement conditions and procedures - possibilities of heat energy input
• Task-Specific Thermal Camera Selection - measurement range (spectral range) - thermal and geometrical resolution - thermal image acquisition/recording speed
• Mathematical Procedures of Active Thermography - ratio formation method - pulse excitation method - Sinusoidal excitation analysis
• Typical Active Thermography Inspections - thermographic inspection (aircraft) - in-process product inspection - non-destructive material testing on plastics - inspection of solar panels

Content of the Video Camera Demonstration

• Model Experiments, Procedure Demonstrations
• Practical Thermal Camera Measurements - non-destructive material testing on plastics
• Thermal Image Evaluation on Computer - practical consideration of theory - application of specialized active thermography software - documentation/report preparation

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